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An air track glider is attached to a spring. The glider is pulled to the right and released from rest at t=0 seconds. It then oscillates with a period of 2.40s and a maximum speed of 30.0 cm/s. What is the glider's position at t=0.300s?

Respuesta :

Answer:

The glider's position at t=0.300s is 8.1 cm

Explanation:

Given;

maximum speed of the glider, [tex]v_{max}[/tex] = 30.0 cm/s = 0.3 m/s

period of the oscillation, T = 2.4 s

Maximum speed of oscillation is given by;

[tex]v_{max}[/tex]  = ωA

Where;

A is the amplitude of the oscillation

ω is the angular speed

[tex]\omega = \frac{2\pi}{T} \\\\\omega =\frac{2\pi}{2.4}\\\\ \omega = 0.833 \pi[/tex]

The amplitude of the oscillation is given by;

[tex]A = \frac{v_{max}}{\omega} \\\\ A = \frac{0.3}{0.833\pi}\\\\ A = 0.1146 \ m[/tex]

The position of the particle is given by;

x(t) = A cosωt

x(0.3) = (0.1146)cos(0.833π x 0.3)

x(0.3) = (0.1146)cos(0.833π x 0.3)

x(0.3) = (0.1146)cos(45)

x(0.3) = 0.081 m

x(0.3) = 8.1 cm

Therefore, the glider's position at t=0.300s is 8.1 cm